Ews Variations - BMW 5251 Service Manual

Central Locking and Anii-Theft
-
If
the starter engages, the following EWS inputs are function-
ing normally:
Ignition key
Code function
Transmission range switch or clutch position switch
Engine speed sensor
NO JE
-
If a
vehicle key i s lost or stolen, the electronic authorization
for that key
can
be cancelled using the B M W scan a n d di-
agnostic tools DISplus,
GTl
o r MoDiC.
Force applied to a
ley
can damage the electronic circuitry
in
the key
A
damaged
ley
will not start the engine.
In
that
case, a new key should b e purchased a n d initialized
by an
authorized B M W dealer.
EWS variations
EWS variations used in
E39
cars are shown in
E39 EWS
ap-
plications
table below.
E39
EWS
applications
I I
Ifling antenna (surrounds ignition switch)
I
System
designation
EWS II
I I
l~ransmitter I receiver module located in right side steering column cover
I
E39
production
dates
SOP - 311 997
I I
I E WS
111 (3.2) control module incorporates transmitter1 receiver moduie functions
/
Main components, changes, improvements
Key with EEPROM transponder
Control moduie located behind glove compartment, in electrical component panel
Control module located to left of steering column, under dashboard
K-Bus input
Transmitter I receiver module eliminated
EWS 111 (3.2)
Transmission range selection input from automatic transmission control module
3 11997
-
911997
-
EWS ill (3.3)
Clutch Hall-effect switch (replaces transmission range switch input)
911997
-
2002
EWS 111 (3.3) control module with iSN code burned in (cannot be overwritten during
alignment)
Control module located to left of steering column, under dashboard